Pin-tumbler lock



l. B. vFREYSIINIGER.

PIN TUNIBLER LOCK. APPLICATION min JAN. 19, 1922.

Patented Oct. 24,

mix-MIE?" ffatented @et 2d, 1922.

conn' n; rnnrsinena, or' s'raivrroan, CONNECTICUT, nssienon ro THE YALE a "rowNn MANUFACTURING courant?, or sranronn, eeNNnc'rrcnfr.

i PIN-TUMBLER LOCK.

Application led January 19, 1922.-.` Serial No. 530,339.

To allen/wm t concern:

Be it known that I, JOHN B. FRNYSINGER, a citizenof the United States, and a resident of Stamford, in the county of Fairfield and State of Connecticut, have invented certain l, newand useful Improvements in PinTum bler Locks; and l do herebydeclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which `it appertains tomake and use the same.

ll/fy invention relates to an improvement in pin tumbler locks and it consists broadly in a cylinder and carrier for the pintumbler, made of sheet metal and` secured together,

` `the carriers for the tumblers having fixed consists in details of construction as will be` depending guides on or in which the tumblers are mounted. My invention `further more fully explained and pointed out in the claims. i

In the accompanying drawings; Figure 1 is a view in vertical longitudinal section of a lock embodying my invention; Figure 2 is a rear end View of the same,.the faceplate i of the lock being omitted; Figure 3 is a View of a side elevation of the tumbler yoke or bridge detached; Figure 1 is a view in plan of the latter; Figure 5 is a view similar to Figure 1, the faceplate, plug, key and tumbler being omitted; Figure 6 is a view in section showing the yoke or carrier made iu two parts, and Figures 7 to 16 inclusive are views of modifications. v 20 represents a cylinder preferably made .l i ofsheet metal and 21 is the yoke or bridge dell substantially Ushape, j and terminating at its free ends in ring shaped supports orbearingsj22 for the ends of the cylinder 20. The

ends of the cylinder are preferably recessed as at 23 to receive the ring shaped supports,

andthe latter are provided, preferably at the tcp as shown in Figures 1 and 2, with integral depending tongues 24 which rest in slots formed in the cylinder 2O and absolutely hold theyyoke or bridge and the cylinder against independent movement. The yoke 21 is preferably provided at its front end with the integral forwardly bent projections 25 adapted to enter slots in the face plate 26 of the lock for locking the face plate to the assembled yoke or carrier and cylinder.

Rigidly secured to and depending from the top member of the yoke 21 are the pins 21"" which preferably terminate in a plane tumbler' drivers 28, which as shown in Figure l may be open at both ends, or as shown 1n Figure 5, may be open at the upper ends only, thelower ends being closed; These drivers are mounted on the pins and project into and through the holes or openings 27 in thecylinder 20, and are yieldingly forced downwardly by the springs 29 which embrace the pins 26 and bear against the under side Vofthe yoke 21 and against the upper edge of the tumbler drivers 28 and thus hold the latter within the openings 27 in thecylinder and against the upper ends of the companion tumblers 30. These tumblers 30 are open at their upper ends to permit them to be moved up onto the pin while inserting and withdrawing the key 31 which is entered in a key slot in the plug 32.

The tumblers are carried in holes in the plug in the usual and Well known manner, and are adaptedto be engaged by the key and move the drivers so that when the proper key is inserted in theplug the line of division between the drivers and tumblers will be on aline with the periphery of the plug` 32, as shown in Figure l, thus permitting the plug to be turned by the key to actuate the lock, switch or other device to which the plug may be connected.

vInstead of providing the yoke with a ring 22 at each endto embrace and support the cylinder, the ring at the front end may be dispensed with as shown in Figure e, and instead of using rings at either end, the ends of the yokeor carrier may be provided with tongues 33 to be forced or upset in slots in the. ends of the cylinder 20, or the yoke or carrier 21.1nay be minus rings or tongues, as shown in Figures 1,1 to 16inclusive and secured tothe cylinder by brazing. lin Figures 11 and 12 the yoke or carrier is in the form of a bridge with open sides whereas in FiguresflB and 14, itis in the form of a closed housing. lnall of these latter forms to wit,` Figures 11 to 14 inclusive, thetongues or projections 25 shown in Figures 1, 2 and 3 are dispensed with and the front end is provided with integral projecting side ears 34 having holes therein for the passage of rivets or screws for securing the face plate 26 to the assembled yoke and cylinder. In the construction shown in Figures l5 and 16 the front end Wall of the yoke is provided with a hole 35 through which a rivet is passed for securing the tace plate 26 to the yoke.

In Figure 6 I have shown the yoke made of two sections 2lb and 21a-the former of -Which is provided rwith a ring embracing 'the front end of the cylinder and is then bent rearwardly over the cylinder and is riveted to the free end et the section or member 21"*ivhich is provided with a ring embracing the rear end of the cylinder.

In `Figure 5 I have' shown drivers 28 closed at their lower ends instead of being; open, as in Figure l, and in Figures 7, 8 and 9 I have substituted hollow sleeves SG for the pins 21a, and mounted the drivers 28h in the lower ends of the sleeves, the springs Q9 being .housed within the sleeve and hearing` on the upper ends of the drivers.

In the construction shown in Figure 10 a block 36a is secured at its upper end within an opening` in the yoke, and 1s provided with a plurality of pockets to receive the springs 29 and drivers 28h.

In all the forms the yoke, bridge or carrier is made separate from vand independent of the cylinder and carries fixed guides for the tumblers4 and .tumbler drivers, and all 'of the parts of the various coi'istruetions shown can be struck .up or stamped from sheet metal thus materially reducing the cost ot manufacture.

`It isA evident that many slight changes might be resorted to in the relative arrangement of parts shown and described without departing;` 'from the spirit and scope `of my invention hence I would have it understood that I do not wish to confine myself to the exact construction and arrangement ot parts shown and described, but- Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is f l. In a pin tumbler lock, the combination of a cylinder, a yoke or Carrier separated from and secured to the cylinder, tired jruides depending from said yoke or carrier. and tumbler drivers supported by said guides. e

2. In a pin tumbler lock, the combination of a. cylinder, a yoke `or carrier secured to the ends ,of said cylinder and separated therefrom, fixed guides depending from said yoke or carrier, and tumbler ydrivers and springs supported by said guides.

3..,In a pin tumbler lock, the combin ation of a cylinder, a yoke Aor carrier separated from the cylinder, a tace plate secured to and cooperatingwith the hollow tumblers.

said yoke or carrier at one end of the latter, fixed guides depending from the yoke and projecting toward the cylinder, and tumbler drivers and springs supported by said guides'.

4;. In a pin tumbler lock. the combination of a cylinder, a yoke or carrier secured at its ends to the cylinder and removed ilrom the latter. 'tired pins secured to said yoke internualiate the latter and the cylinder. hollow drivers mounted on the tree ends oi said pins, and springs tor 'forcing the drivers downwardly.

5. In a pin tumbler lock. the combination ot a cylinder, a separate yoke or carrier secured to said cylinder, pins rigidly fixed to said Yoke. hollow drivers mounted on said pins, a plug` hollow plungers in the plug and eooperatino` with the drivers. and springs supported by the ,fixed pins and bearing' on the drivers.

6. In a pin tumbler lock, the combination ot a cylinder a n( a yoke or carrier both made or" sheet metal. the yoke heine" secured at its ends to .the cylinder` a key plug' mountml in the cylinder, tumblers in the plug and adapted to be actuated by ay key, lixed Iguides carried by the yoke or carrier, drivers guided by said guides and cooperating` with the tum'- blers. and a spring' supported by each guide and bearing against its respective drivel'.

7. In a pin tumbler lock. the combination ot' a cylinder and a yoke or carrier both made ot sheet metal, the cylinder beingr secured at its ends to said yoke or carrier. a key plus; mounted to rotate in the cylinder. tumblers carried by said plug and adaiited to be actuated bv a key, fiXed fluides carried by the yoke. hollow drivers mounted on and iuided by said guides` the said drivers cooperating` with the tumblers. and springs embracing); the tixed guides and bearing on the upper ends of the tumblers.

S. In a pin tumbler lock, the combination ot a cylinder. a ,voke or carrier secured at its ends to the cylinder` a key plug mounted to rotate in the cylinder, hollow tumblers witbin said plusT and adapted to be actuated by a key. lguides fixed to said yoke or carrier. sleeve shaped drivers mounted on said guides and springs embracingy the `guides and bearino; against the upper ends ot the drivers.

In testimony whereof, I have signed this specifica-tion in the presence of two subscrib ing;` witnesses.

JOHN B. FR YSINGER.

IVitnesses Crus. A. BERRY. CHAs. LrnrN. 

